Mr Brown, My Ithaca SKB 100 was purchased new in 1969-70 and the barrels are blued and the frame is blued also. My Serial number is S1777XX. I own another one that was built later and the frame is blued and the barrels are black chromed serial no S51113XX There may have been many diffrent variations built over the years. My friend claims to have one with a single under bolt lock up( like a Parker) as opposed to a double lock up that you see on most of them but I have not seen it yet. By the way guys. I was at the Allentown Pa show today and saw a Ithaca SKB 100 20Ga. in the box with papers for about $1100. It appeared to be new but I couldn't get near the table because of other customers.
